Full list of contributors:

Joan Armatrading, Jeff Beck, Richard Bennett, Joe Bonamassa, Joe Brown, James Burton, Jonathan Cain, Paul Carrack, Eric Clapton, Ry Cooder, Jim Cox, Steve Cropper, Sheryl Crow, Danny Cummings, Roger Daltrey, Duane Eddy, Sam Fender, Guy Fletcher, Peter Frampton, Audley Freed, Vince Gill, David Gilmour, Buddy Guy, Keiji Haino, Tony Iommi, Joan Jett, John Jorgenson, Mark Knopfler, Sonny Landreth, Albert Lee, Greg Leisz, Alex Lifeson, Steve Lukather, Phil Manzanera, Dave Mason, Hank Marvin, Brian May, Robbie McIntosh, John McLaughlin, Tom Morello, Rick Nielsen, Orianthi, Brad Paisley, Nile Rodgers, Mike Rutherford, Joe Satriani, John Sebastian, Connor Selby, Slash, Bruce Springsteen, Ringo Starr and Zak Starkey, Sting, Andy Taylor, Susan Tedeschi and Derek Trucks, Ian Thomas, Pete Townshend, Keith Urban, Steve Vai, Waddy Wachtel, Joe Louis Walker, Joe Walsh, Ronnie Wood, Glenn Worf, Zucchero.